Bottle or container of paper, wood pulp, or the like



Nov. 29, 1938. J. w. WHEELER BOTTLE OR CONTAINER OF PAPER, WOOD PULP, OR THE LIKE Filed Feb. 2'7, 1956 Patented Nov. 29, 1938 BOTTLE JohnWil liam dApplication February 27, 1936, SerialNo. 6,101

In Great Britain February 28; 1935 1 Claim. This invention relates to bottles and like containers made from blanks oi paper, woodpulp or like sheet material folded'into shape. 'One important applicatia n of theiinvention'is to con:

5 tainers suitable for holding liquids such as milk. In the usual way of formingsuch a container,

in order to provide a closure, two opposite side portions of the container are brought together for sealing'purposes and the interveningside portions are each tucked inwardly such that there is formed a triangular side portion which slopes inwardly beneath the side'portions brought together to form the closureythus providing an inwardly directed recess.

The present invention comprises a bottle or'like containerformed by folding a'bl'ank of paper or like'sheet material and closed by bringing two opposite side portions of the container together:

to form 2O tions of triangularTformation are caused to lie flush with the edges oi the sloping side or sides of;

the closure.

the excess materialof each of said intervening side wallportions is formed as one or more pleats lying alongside the sloping side or sides. t

In one form of thecontainer according to the invention one, of the two side portions which are brought'together is sloped upwardly and towards the. other which is substantially upright with respectof the baseof the container so that that part of the container forming the closure has somewhat the shape, in cross-section, of a rightclosure as aforesaid is in one embodiment provided. with a base at or adjacent the lower'end of the sloping side or sides. Thus, in this construction the complete container is oftriangular form in cross-section and may have the form of a triangular prism.

In another construction of the container there is provided a body part of rectangular cross-section which is surmounted by that part forming the closure as aforesaid.

Instead of a body portion of rectangular crosssection, a body portion of any other shape in cross-section may be employed merging into a rectangle at the lower end of the sloping side or sides. In one construction the body portion is of circular or other curved form in cross-section at the base of the container merging into rectangular shape at the junction with the one or more sloping sides of the tapered closure.

For forming a container as aforesaid with a a. tapered closure having at least one sloping side, wherein the intervening side por According to another feature of theinvention angled triangle. "The container formed" with a' rectangular body portion there is preferably em-v ployed a blank'divided by creasingsfintoaplurality of sections correspond ing' in width with the width of the side walls of the container or the body portion thereof,-and

the upper ends of alternate" sections are further longitudinal scorings or V creased or scored along'finclined lines todeflne the part or parts thereof to be pleated and to leave the remaining'part or parts flush'with the edges "of adjacent sections as the upper'ends of 1 the latter sections arebrought together to form the closure. The aforesaid pleats may be folded either beneath or above the adjacent section or side of the container.

In order that the said invention may be clearly understood and readily carried into effect; the same will now be more fully described with ref-' erence to'the accompanying drawing, in which:-'

Figure 1 shows one form of blank for providing a'container embodyingthe invention and having a rectangular body portion;

Figure 2 is asectional view showing one mode of formingthe base of a containenproduced in accordance with the invention;

Figure dis a perspective view of a container formed from the blank shown in Figure 1;

Figures; 4 and 5 illustrate" two" alternative methods of closing the mouth of a container formed fromthe blank shown in Figure l. H

The substantially rectangular blank shown in Figure 1 is creased or scored along four longitudinal lines I, 2, 3 and 4 disposed parallel with the side edges of the blank so that when the latter is folded along these lines the sections a, b, c, d

and e thus'provided form the sides of a hollow rectangular body, part of which one side wall is formed by one of the outermost sections 'a, overlapped by the other-outermost section e, such overlapping section being preferably slightly shorter than the others as shown.

At the end of the blank corresponding to the base of the container, a horizontal score or crease 6 is preferably formed so that it is coincident with the lowermost edge of the overlapping section e and, if desired, the portions of the sections a, b, c and d disposed below the crease 6 distance above and parallel with the score orcrease 6 so that, when folding the blank to form the base,.the portions of the sections disposed beto lie against the inner surfaces of the body side walls whilst the tab portions a b 0 and d are folded about the crease 6 so as to lie at rightanglesto the ,body side walls and to form a horizontal ledge ID as shown in Figure 2. The base may be completed, or strengthened if folded up,

by a separate blank l2 which corresponds in shape and dimensions with the cross-section of the base of the body and which is secured to the said ledge.

The base-forming blank I! is preferably provided with narrow downwardly extending mar gi'nal edges l3 which are insertedin position.be-. tween the inner surfaces of those portions of the sections which are disposed between the lines 6 and 8 and the adjacent lower ends of the inner surfaces of the body side walls to form a recessed base for the container as is shown in Figure 2.

.At the upper end of the blank shown inFigure 1, one of the sections, for example, the section a, is provided with a horizontal creasei5 disposed in such position as to define the upper end of the aforesaid body part and, topermit the rectangular'portion a disposed above the line I 5 to be folded about sueh'line towards the opposite, section 0 to form the mouth-closing portion of the container as is shown in Figures 3, 4 and 5. It will be observed that the section c is somewhat shorter than its' opposite section a and that the upper portion thereof is upright with respect to the base of v the container.

The intervening sections '12 and d are each creased or scored alongan inclined line I ten-r tending from the end of the adjacent horizontal scoring l5 to the upper edge of the section c so that the portions immediately below these lines definethe right-angled. triangular side portions of. the container surmounting, in .this instance, the rectangular parts of the side walls of the con-- tainer. The remaining \(-shaped or triangular portions disposed above-the lines I8 are scored or creased along inclined lines to enable the same tobe folded under or over the rectangular portion a as the latter isfolded inwardly to form the ln- For instance,

clined side wall of the. closure. 7 each of the said V -shaped portions may be creased or' scored along 'a line I!) bisecting the angle of the V so as to'enable these portions-to be pleated or doubled upon themselves as shown p in Figures 4 and5. .In the former figure, the

pleats are folded inwardly or under the portion Instead of providing a body portion of rectangular form for the container, the body portion may be of any other shape in cross-section; It is preferable, in many cases, to form the body of tapering shape so that the containers,

' when empty, may be nested. one within another tween the lines 6 and 8 can be folded back so as in order to economize space-in storage andtransport.

, The bottle or container is usually composed of a paper which is proofed, either before or after being formed, by wax or any other convenient agent and, if desired, heat may be applied 'to certain parts of the mouth-closing section for the purpose of providing a leak-proof seal or a metal clip may be employed. Also, in some instances, the pleat-forming portions may be,

formed of thinner paper than the remaining-portionsof the blank and these portions may be provided with a lining of thinner paper which covers the inside of the remainder. of the blank and-is exposed in the region of such. portions so that From the foregoing it will'be appreciated that the invention provides an improved bottle or con-' tainer of paper, wood-pulp. or the like in which one or both sides of thecontainer are sloped inwardly and the intervening triangular sidewall portions are brought out flush with the edges of the sloping side or sides so that the container presents a neat and attractive appearance and is free from any internal constrictions" or pro jections whichmight cause churning of the liquid content which, in the case of milk, is objec tionable, V Having thus, described my invention'what I claim as new therein and desireito secureby Letters Patent is:' v i A container for holding 'liquids, semi-liquids,

powders and the like formed byfolding a blank of sheet material, said container having a tapered closure formed-by bringing two opposite side portions together so that one is sloping whilst the other is substantially upright, "intervening side portions of triangular formation lying fflush with the edges of the portions brought to gether and pleats lying alongside the tapered portion' 7 v JOHLT WHEELER. 

